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    SubjectRe: [RFC] Extend mwait idle to optimize away IPIs when possible
    On 02/06/2012 05:34 PM, David Daney wrote:
    >
    > Well I don't know that part. The gist of my comment was to get rid of an
    > unneeded new config variable.
    >
    > If this works just as well for 32-bit, then by all means do it there too.
    >
    > In any event, I think you want the kernel to automatically do it if the
    > CPU is capable, and not have a manual config setting you have to fiddle
    > with.
    >

    If this is a transitional thing then it might justify it.

    -hpa



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